/Engine/Source/Runtime/MovieScene/Public/Tracks/MovieSceneSpawnTrack.h
void PopulateSpawnedRangeMask ( const [TRange](API\Runtime\Core\Math\TRange)< [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) > & InOverlap, [TArray](API\Runtime\Core\Containers\TArray)< [TRange](API\Runtime\Core\Math\TRange)< [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) >, TInlineAllocator< 1 >> & OutRanges ) const